Bebe Rexha, who worked with Florida Georgia Line on 'Meant To Be', has shared in a series of tweets on Monday that she has bipolar disorder.

"For the longest time, I didn't understand why I felt so sick," she explains. "Why I felt lows that made me not what to leave my house or be around people and why I felt highs that wouldn't let me sleep, wouldn't let me stop working or creating music. Now I know why. I'm bipolar and I'm not ashamed anymore. That is all." Musicians and fans responded with messages of support and encouragement.